Jiangsu Huafilter Hydraulic Industry Co., Ltd.
Jiangsu Huafilter Hydraulic Industry Co., Ltd.
Products
Proportional Pressure Reducing Valve 3DREP6-2X
  • Proportional Pressure Reducing Valve 3DREP6-2XProportional Pressure Reducing Valve 3DREP6-2X
  • Proportional Pressure Reducing Valve 3DREP6-2XProportional Pressure Reducing Valve 3DREP6-2X

Proportional Pressure Reducing Valve 3DREP6-2X

Huafilter is a approved supplier of Huade Hydraulic, providing Huade brand proportional pressure reducing valve 3DREP6-2X. This vale is suitable for controlling the pressure and flow direction of the system. Huade Hydraulic has years of experience in hydraulic production. In its early years, through collaboration with Rexroth, it introduced advanced production technologies and adopted unified standards with Rexroth. Huade’s proportional valves 3DREP6-2X is relatively cheaper in price.

The 3-way pressure reducing valve type 3DREP6-2X...is directly actuated by proportional solenoids. They convert an electrical input signal into a proportional pressure output signal. The proportional solenoids are controllable wet pin DC solenoids with central thread and removable coil. The solenoids are controlled optionally via external control electronics(type 3DREP-2X)or by integrated control electronics(type 3DREPE-2X).


Product parameter of Proportional Pressure Reducing Valve 3DREP6-2X

Hydraulic
Valve type HD-3DREP HD-3DREPE
Operating pressure range MPa Port P 2 to 10 for pressure stage 1.6
3 to 10 for pressure stage 2.5
5 to 10 for pressure stage 4.5
Port T 0 to 3
Max.flow L/min 15(△p=5MPa)
Filter fineness (μm) ≤20(preferably≤10)
Hysteresis (%) ≤5
Repeatability accuracy (%) ≤1
Response sensitivity (%) ≤0.5
Pressure fluid Mineral oil, or phosphate ester
Viscosity range mm2/s 20~ 380
Pressure fluid temperature range ( ℃) -20~+80
Weight (Kg) 2 2.2
Electrical
Electrical data, solenoid
Valve type HD-3DREP HD-3DREPE
Voltage type DC DC
Nominal voltage (V) 24
Max.current (A) 1.5 2.5
Solenoid coil resistance (Ω) Cold value at 20℃ 4.8 2
Max.warm value 7.2 3
Duty (%) 100
Coil temperature ℃ up to 150
Protection IP65
Electrical, control electronics
Amplifier HD-VT-VSPA2-50-1X/T1(With 1ramp time) integrated control electronics
HD-VT-VSPA2-50-1X/T5(With 5 ramp times)
Supply voltage Nominal voltage VDC 24
Lower limiting value V 19
Upper limiting value V 35
current consumption Imax A 1.8
Impulse current A 4

Product Feature And Application of Proportional Pressure Reducing Valve 3DREP6-2X

Features:

▶ Directly controlled proportional valves for the control of the pressure and direction of a flow

▶Actuated via proportional solenoids with central thread and removable coil

▶Hand override, optional

▶Spring centered control spool

▶Type HD-3DREPE with integrated electronics, interface A1

▶External control electronics for type HD-3DREP:

▶Analogue amplifier type HD-VT-VSPA2-50-1X/...in Eurocard format

▶Digital amplifier type HD-VT-VSPD-1-1X/. ..in Eurocard format

▶Electrical amplifier type HD-VT-11118 of modular design

▶ Valve and proportional control electronics from a single source

Application:

Proportional pressure reducing valve 3DREP6-2X is widely used in automatic control of hydraulic systems in various industries such as machine tools, light industry, metallurgy, and so on.


Function and Valve Particularities of  Proportional Pressure Reducing Valve 3DREP6-2X

The valve mainly comprises of:solenoids(5 and 6),housing(1),control spool(2)with pressure measuring spools (3 and 4) and optional integrated valve electronics(7).

With the solenoids(5 and 6) de-energised the control spool(2)is held in its centre position by compression springs. The control spool (2)is directly actuated when one of the solenoids is energized.

E.g. by energizing solenoid (5):the pressure measuring spool(3)and control spool(2)move to the right in proportion to the electrical input signal. The connection from P to B and A to T is via orifice form cross-sections with progressive flow characteristics.

De-energisation of the solenoid (5):the control spool(2)is returned to its centre position by the compression springs. In the middle position the connections A and B to T are opened, therefore the pressure fluid can freely flow to tank. An optional hand overrides(9 or 10),makes is possible to move the control spool(2)without energising the solenoid.

The function of this version of the 2 position valve is basically the same as that of the valve with 3 switching position.

The 2 position valves are however only fitted with either solenoid 5 or 6. A plug (11)is fitted in place of the second solenoid

Symbols of Proportional  Proportional Pressure Reducing Valve 3DREP6-2X



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